Pore Structure Characterization of Shales from Kachchh and Kaladgi Basins

Authors

  • Sagar Thakurdas Assistant Professor, Department of Geology, Nowrosjee Wadia College, Pune, Maharashtra 411001, India
  • Dhananjay Meshram Professor, Department of Geology, Savitribai Phule Pune University, Pune, Maharashtra 411007, India
  • Bhawanisingh G Desai Associate Professor, Pandit Deendayal Energy University, Gandhinagar, Gujarat 382007, India.
  • Uday Kulkarni Principal, Moolji Jaitha College, Jalgaon, Maharashtra 425001, India.

DOI:

https://doi.org/10.48165/bpas.2023.42F.1.11%20

Keywords:

Kachchh, Kaladgi, Shale, Pore size distribution, BET

Abstract

Estimating transport and storage properties of shale is a challenging task, due to the lack of understanding of their  pore size characteristics. Matrix of shales have micro (pores less than 2 nm diameter) to meso-pores (pores with 2-50  nm diameter) within them. These nano scale pores are mainly associated with clay minerals. The pore structure  characteristics of shales viz. surface area, pore size distribution and pore volume, from Kachchh basin of Gujrat and  Kaladgi basin of Karnataka, were evaluated using N2physisorption analyses. The samples were analyzed by applying  Brunauer–Emmett–Teller (BET) theory for surface area calculation and Barrett–Joyner–Halenda (BJH) theory for  understanding the pore size distribution and pore volume. The pore structural characteristics were compared with  the mineral composition obtained from X-ray diffraction analysis. Both sample sets show Bi-modal pore size  distribution. Bi-modal pore size distribution is indicative of the intra-layer clay pore space. Differential porevolume  indicates that porosity is very low in Kaladgi shales in comparison to Kachchh shales. 

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References

Biswas S. (2016) Mesozoic and Tertiary Stratigraphy of Kutch (Kachchh)—A Review. In: Recent Studies on the Geology of Kachchh. Geological Society of India, Special Publication 6, 1-24

Biswas, S.K. (1993) Geology of Kutch – A compilation of Field Reports (1957-1972), KDM Institute of Petroleum Exploration, 450p.

Desai, B and Biswas S. (2018). Postrift deltaic sedimentation in western Kachchh Basin: Insights from ichnology and sedimentology. Palaeogeography, Palaeoclimatology, Palaeoecology. 504, 104–124.

Desai, B., Sahani, S., Singh, A., Pandey M. (2018). Characterization of Organic Potential of Jhuran Shale Formation of Kutch Basin, Geo India 2018, Paper ID ST497.

EIA (Energy Information Administration) report (2014). ARI World Shale Gas and Shale Oil Resource Assessment.

Hinai A. (2014). Investigation of Gas Shale Pore Structure and its Influence on Transport Properties, Thesis is presented for the Degree of Doctor of Philosophy of Curtin University, pp. 49-52

Kale V., Patil P., Phansalkar V., Peshwa V. (1999). A process-responsive litho stratigraphic classification of the Kaladgi Basin, Karnataka. Abstr. Geol. Soc. India, Field workshop on integrated evaluation of the Kaladgi & Bhima Basins. pp. 4-7.

Loucks, R. G., Reed, R.M., Ruppel, S. C., and Jarvie, D.M. (2009). Morphology, Genesis, and Distribution of Nanometer-Scale Pores in Siliceous Mudstones of the Mississippian Barnett Shale, Journal of Sedimentary Research 79, 848-861.

Siswandani, A., Nurhandoko, B.B., (2015). Development of Porosity Measurement Method in Shale Gas Reservoir Rock. Asian Physics Symposium 2015, published in the open access IOP Conference Series.

Sondhi N. (2011). Petrophysical characterization of eagle ford shale. A thesis submitted to University of Oklahoma.

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Published

2023-07-04

Issue

Vol. 42 No. 1 (2023): Bulletin of Pure and Applied Sciences-Geology (Jan-Jun) 2023

Section

Articles

How to Cite

Thakurdas, S., Meshram, D., Desai, B.G., & Kulkarni, U. (2023). Pore Structure Characterization of Shales from Kachchh and Kaladgi Basins . Bulletin of Pure and Applied Sciences-Geology , 42(1), 138–143. https://doi.org/10.48165/bpas.2023.42F.1.11
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